To facilitate both learning about forces and coordinating forces with the system schema, force symbols in University Modeling Instruction carefully represent forces as detailed descriptions of interactions. For example, ^→F^g_E→B represents the gravitational force by Earth on a ball, where "g" represents gravitational (i.e. the type of interaction), "E" represents Earth, → represents "by" and "on", and "B" represents ball. Although students are taught to say ^→F^g_E→B as "gravitational force", audio data from student-led whole-class discussions shows over 40% percent of the time ^→F^g_E→B was referred to as "force gravity" instead. Symbols for contact force, such as ^→F^c_H→B, were similarly referred to as "force contact" rather than "contact force" over 40% of the time. Because language plays a crucial role in learning physics, several years ago, as an experiment, the notation was changed from ^→F^g_E→B to ^g  →F_E→B to make it more closely match how it is to be read. After this notation switch, student use of "force gravity" dropped to less than 2%, while use of "force contact" completely disappeared. While we make no claims that helping students read symbols more effectively facilitates their learning about forces, it is clear that the simple change in notation was extremely effective at solving the reading problem.